[JDEV] Sparse considerations about server status

Thomas Muldowney temas at box5.net
Wed Aug 8 12:16:08 CDT 2001


Like I posted earlier I need more specifics to investigate this.  Having clients
build in safeguards is ridiculous!  This would be a server bug by far if no
bounce is happening and it is actually getting lost somehow.  It has high 
priority in my books, but I need info, debug logs, incoming/outgoing XML for 
both parties involved, and anything else that will help.

--temas

On Thu, Aug 02, 2001 at 12:04:56PM -0500, Dustin Puryear wrote:
> On 29 Jul 2001 23:19:30 +0200, Gian Filippo Pinzari wrote:
> > > Notice that at >= 120 user pairs (240 connected users), which equates to 
> > > 120 msg/sec in this test, my message loss rate varies from 3% to 13%. 
> > > The average delivery also climbs to .14 seconds, but I don't consider 
> > > that a problem. (However, the worst case delivery times are bad: > 6 
> > > seconds for 150 and 160 user pairs.)
> > We've just developed a project (client+server) for one of the 
> > biggest ISP in Italy. We found since the beginning that each 
> > Jabber server was not able to handle more than a couple hundreds 
> > client, so we implemented an architecture that load balances the 
> > traffic among many concurrent servers running on the same or 
> > different hosts. We also encountered message losses, but we didn't 
> > care much :-). As Dustin, we thought this was due to client 
> > problems.
> 
> Well, now that I know someone else has had a similar experience I can
> only assume the problem is with jabberd. I had hoped that jabber.org
> would confirm this to either be a problem or something they had built
> into jabberd, but that information hasn't been very forthcoming.
> 
> In the end I suppose developers using jabberd need to realize that it
> only works in low to medium load environments where message delivery is
> not a big issue. Unfortunately, I am not sure if the same is true of the
> jabber.com server since they didn't present any information on this
> topic either.
> 
> Regards, Dustin
> 
> --
> Dustin Puryear <dpuryear at usa.net>
> http://members.telocity.com/~dpuryear
> In the beginning the Universe was created. 
> This has been widely regarded as a bad move. - Douglas Adams
> 
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